I really my our new Canon MX870. It's wifi and I can scan via wifi and while it does have ADF I can't say it's as good a feeder as the office's 40,000 buck 500 pound Xerox machine. But I paid much less than the office.

Ok as to file management I use the old fashioned folder method. I have a folder with the month and year on it and scans for that month go in there.
Bob